\begin{pspicture}(0,-0.5)(12,10)
	\input{fig/zig-helpers.tex}

	\Yaxis019\Xaxis1{12}0  % Axes.


	% Leading stripes in front of all meta-diamonds.
	\pspolygon*[linecolor=gray]
						(9,1)(11,3)(5,9)(5.5,9)(11.5,3)(9.5,1)
	\put(0.5,0){
		\pspolygon*[linecolor=lightgray]
							(9,1)(11,3)(5,9)(5.5,9)(11.5,3)(9.5,1)
	}

	% Stripes between first and second meta-diamonds.
	\pspolygon*[linecolor=gray]
						(8,1)(6,3)(8,5)(4,9)(4.5,9)(8.5,5)(6.5,3)(8.5,1)
	\put(0.5,0){
		\pspolygon*[linecolor=lightgray]
							(8,1)(6,3)(8,5)(4,9)(4.5,9)(8.5,5)(6.5,3)(8.5,1)
	}

	% Stripes between second and third meta-diamonds.
	\pspolygon*[linecolor=gray]
						(7,1)(3,5)(5,7)(3,9)(3.5,9)(5.5,7)(3.5,5)(7.5,1)
	\put(0.5,0){
		\pspolygon*[linecolor=lightgray]
							(7,1)(3,5)(5,7)(3,9)(3.5,9)(5.5,7)(3.5,5)(7.5,1)
	}

% Meta-diamonds.
\multiput(8,1)(-3,2){3}{
	\multiput(0,0)(1,1){2}{
		\multiput(0,0)(-1,1){2}{
			\pspolygon[linecolor=darkgray](1,0)(2,1)(1,2)(0,1)
		}
	}
}

	% All-white rectangle to disallow diamond outlines to cross over simulation
	% domain "boundaries". Just a small detail.
	\psframe*[linecolor=white](1, 0.5)(12,1)
	\psframe*[linecolor=white](1, 9)(12,9.5)

	\end{pspicture}

